Solar energy receiver
Abstract
An improved longlife design for solar energy receivers provides for greatly reduced thermally induced stress and permits the utilization of less expensive heat exchanger materials while maintaining receiver efficiencies in excess of 85% without undue expenditure of energy to circulate the working fluid. In one embodiment, the flow index for the receiver is first set as close as practical to a value such that the Graetz number yields the optimal heat transfer coefficient per unit of pumping energy, in this case, 6. The convective index for the receiver is then set as closely as practical to two times the flow index so as to obtain optimal efficiency per unit mass of material.
 Inventors:

 Arlington, MA
 Issue Date:
 Research Org.:
 Sanders Associates, Inc
 OSTI Identifier:
 863212
 Patent Number(s):
 4121564
 Assignee:
 Sanders Associates, Inc. (Nashua, NH)
 Patent Classifications (CPCs):

F  MECHANICAL ENGINEERING F03  MACHINES OR ENGINES FOR LIQUIDS F03G  SPRING, WEIGHT, INERTIA OR LIKE MOTORS
F  MECHANICAL ENGINEERING F24  HEATING F24S  SOLAR HEAT COLLECTORS
 DOE Contract Number:
 EY76C022823
 Resource Type:
 Patent
 Country of Publication:
 United States
 Language:
 English
 Subject:
 solar; energy; receiver; improved; longlife; design; receivers; provides; greatly; reduced; thermally; induced; stress; permits; utilization; expensive; heat; exchanger; materials; maintaining; efficiencies; excess; 85; undue; expenditure; circulate; fluid; embodiment; flow; index; set; close; practical; value; graetz; yields; optimal; transfer; coefficient; unit; pumping; convective; closely; times; obtain; efficiency; mass; material; reduced thermal; thermally induced; heat exchange; heat exchanger; heat transfer; solar energy; energy receiver; greatly reduced; pumping energy; optimal efficiency; transfer coefficient; greatly reduce; energy receivers; /126/60/
Citation Formats
Schwartz, Jacob. Solar energy receiver. United States: N. p., 1978.
Web.
Schwartz, Jacob. Solar energy receiver. United States.
Schwartz, Jacob. Sun .
"Solar energy receiver". United States. https://www.osti.gov/servlets/purl/863212.
@article{osti_863212,
title = {Solar energy receiver},
author = {Schwartz, Jacob},
abstractNote = {An improved longlife design for solar energy receivers provides for greatly reduced thermally induced stress and permits the utilization of less expensive heat exchanger materials while maintaining receiver efficiencies in excess of 85% without undue expenditure of energy to circulate the working fluid. In one embodiment, the flow index for the receiver is first set as close as practical to a value such that the Graetz number yields the optimal heat transfer coefficient per unit of pumping energy, in this case, 6. The convective index for the receiver is then set as closely as practical to two times the flow index so as to obtain optimal efficiency per unit mass of material.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1978},
month = {1}
}